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Iain here.

(AC tips at bottom of this page:-)

In the video below, I explain how to work out if your garden studio windows are north facing. If they are north facing, you probably won't need the cooling aspect of an air conditioner in your garden office...(see my comments at the bottom of this page, about costs)


Alex and I discuss the Air Conditioning Units in the videos below...  

1. Internal Unit -

please note that this has been upgraded to a Fujitsu Air Conditioning unit backed up with a 5 year guarantee.

Rob Booth, Alex twin brother, handles the Air Conditioning installation, servicing and guarantees with his company.

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Alex and I discuss the outside AC Unit...


The piping for the external outside AC can be extended if required.

Alex and I discuss this here...


Larger AC Spec

STANDARD AC UNIT SPEC (installed in 95% of Garden Studios)...


LARGE AC UNIT SPEC (installed in very large Garden Studios)...




As well as an annual service...

In the summer. once a month, run your AC in cooling mode (Snow flake on indoor unit display) for 30 mins on the lowest temperature setting (16 or 17 degrees.)

Then use your remote to turn it off for 3 minutes (This allows the refrigerant to settle.)

Then use your remote to switch back on in HEAT mode (SUN on indoor unit display.) and put it on it's highest temperature for 30 mins (32 degrees.)

In the winter, do it the other way round - run the heat mode first, switch off, then run the cold mode.

This keeps your system valves in good order.


You should also check the dust filters every 3 months and clean by hoovering with a brush or wash in warm water with a small amount of washing up liquid. Leave to dry naturally.

Turn off your AC power at the mains the check that your outdoor unit has no trees or twigs interfering with the blades. Wash the fins gently with a hosepipe to remove grit and dust. Allow to dry before turning mains back on.

ALSO NOTE - if the outside temperature is less than 8 degrees different


As a guide to AC costs...

A/C. 10 year cost including purchase at 14.1p per kWh £2,600
Conventional 3.2 kw electric radiator with built in thermostat control and hand held remote.
10 year cost including purchase at 14.1p per kWh £5,280 and no cooling facility.
This doesn't allow for the fact that the cooling mode still uses electric and so you would have
to allow for that. 
I believe the AC purchase is more of a "comfort" decision as the room is generally more comfortable than having a conventional electric heater. In fact, as I write, it's 30 degrees outside - yes - the UK's hottest day so far this year but I'm very comfortable with my AC gently cooling me and making work a pleasure rather than a drain!
I do have a Which report summary if you decide to buy a normal heater. Let me know if you'd like to see that and I can email it to you.
Also, bear in mind that an AC can be fitted retrospectively so you could try a summer and winter without it and see how you go.

Hope this helps.
Many thanks,